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This article is cited in 11 scientific papers (total in 11 papers)
INSTRUMENTS AND METHODS OF INVESTIGATION
Negative ion adsorption by the ion source surface as a factor influencing ion lifetime measurements
V. G. Lukin, O. G. Khvostenko Institute of Molecular and Crystal Physics, Ufa Scientific Center of the Russian Academy of Sciences
Abstract:
It is well known that negative ions formed in the gas phase through low-energy electron capture by molecules show a scatter in the measured lifetimes of their autodetachment states. In considering this question, it was found that, when using a static sector magnetic mass spectrometer, some of the ions formed on the ionization chamber walls are adsorbed and stabilized there, then joining the registered ion flux and thereby distorting their measured lifetime. Because the number of the adsorbed ions depends on the experimental conditions, their contribution to the total flux is to some extent uncontrollable—hence, the scatter.
Received: May 24, 2016 Revised: January 9, 2017 Accepted: January 17, 2017
Citation:
V. G. Lukin, O. G. Khvostenko, “Negative ion adsorption by the ion source surface as a factor influencing ion lifetime measurements”, UFN, 187:9 (2017), 981–1002; Phys. Usp., 60:9 (2017), 911–930
Linking options:
https://www.mathnet.ru/eng/ufn5694 https://www.mathnet.ru/eng/ufn/v187/i9/p981
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Abstract page: | 180 | Full-text PDF : | 25 | References: | 29 | First page: | 4 |
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